402344 has 16 divisors (see below), whose sum is σ = 794400. Its totient is φ = 190512.

The previous prime is 402343. The next prime is 402359. The reversal of 402344 is 443204.

402344 = 67² + 68² + ... + 114².

It is not an unprimeable number, because it can be changed into a prime (402341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1172 + ... + 1475.

It is an arithmetic number, because the mean of its divisors is an integer number (49650).

2⁴⁰²³⁴⁴ is an apocalyptic number.

It is an amenable number.

402344 is a deficient number, since it is larger than the sum of its proper divisors (392056).

402344 is a wasteful number, since it uses less digits than its factorization.

402344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2672 (or 2668 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 402344 is about 634.3059198841. The cubic root of 402344 is about 73.8242725858.

Adding to 402344 its reverse (443204), we get a palindrome (845548).

The spelling of 402344 in words is "four hundred two thousand, three hundred forty-four", and thus it is an iban number.